‘AssemblyTitle’ attribute in the .NET Framework

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[AssemblyTitle] is a pretty big deal, it is directly visible when you right-click on the assembly and use Properties + Details.

An example to make it more visible. Let’s start with this AssemblyInfo.cs file:

[assembly: AssemblyTitle("AssemblyTitle")]
[assembly: AssemblyDescription("AssemblyDescription")]
[assembly: AssemblyConfiguration("AssemblyConfiguration")]
[assembly: AssemblyCompany("AssemblyCompany")]
[assembly: AssemblyProduct("AssemblyProduct")]
[assembly: AssemblyCopyright("AssemblyCopyright")]
[assembly: AssemblyTrademark("AssemblyTrademark")]
[assembly: AssemblyCulture("")]
[assembly: Guid("7da36bdf-39fb-4a4d-b98c-ecefd99b155a")]
[assembly: AssemblyVersion("1.2.3.4")]
[assembly: AssemblyFileVersion("5.6.7.8")]

And look at the properties of the file:

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Some annotations to this:

  • Note how [AssemblyDescription] is misleading, it is actually the Title you see in the property sheet.
  • Description, Configuration and Company are not displayed. You probably want to merge the company name into the visible Copyright. Description and Company are actually present in the unmanaged version resource but Windows just doesn’t display it.
  • [AssemblyCulture] is special, it is used by satellite assemblies for localization
  • [Guid] is special, it sets the type library guid if you create a [ComVisible] assembly
  • [AssemblyVersion] is extraordinary special, a really big deal in the .NET Framework. That it is not displayed is a major hangup. You can see it in XP, not in later Windows versions. A strong consideration is to make the [AssemblyFileVersion] the same value.
  • The displayed “Product version” is the same as the “File version”. That’s not great either, you want to add the [AssemblyInformationalVersion] attribute to fix that.

It is quirky, the Windows group and DevDiv didn’t always work together well.

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